> For the complete documentation index, see [llms.txt](https://support.docstudio.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.docstudio.com/admin-panel/webhooks-callbacks/callbacks-admin-ui/manage-callbacks.md).

# Manage Callbacks

An envelope callback is a feature that allows you to receive a notification at the specified URL when an envelope appears in the mailbox according to the configured filters. You can set up callbacks for mailboxes to receive envelope notifications outside the platform. This is done via API.

### Open callbacks

<figure><img src="/files/4CSn5Lpj6ZnXIBsRlAyF" alt=""><figcaption></figcaption></figure>

1. Navigate to the **Callback** tab in the admin panel.
2. In the drop-down list, select the mailbox whose callbacks you want to display.

A list of callbacks is displayed for the selected mailbox if callbacks have been configured via the API. Otherwise, the page is displayed as an empty folder.

### Callback list columns

<figure><img src="/files/GaQJM4Ll7kq6xcBEpJVK" alt=""><figcaption></figcaption></figure>

The list of callbacks contains the following information:

1. Callback URL.
2. Authentication type:\
   — basic\
   — none
3. Success code.
4. Filter — list of specified filters for a specific callback.
5. Action buttons:\
   — settings\
   — delete